ICSE Class 10 Answered
Why does Pure Nitric Acid not dissolve noble metals but aqua regia dissolve them?
Asked by pb_ckt | 29 Jan, 2019, 01:01: PM
Expert Answer
Aqua regia:
HNO3 + 3HCl → NOCl +2H2O +2Cl2
Nitric acid reacts with hydrochloric acid to form a mixture called aqua regia.
The product formed NOCl nitrosyl chloride is a stronger oxidizing agent than nitric acid.
Hence pure nitric acid does not dissolve noble metals but aqua regia dissolve them.
Answered by Ramandeep | 29 Jan, 2019, 03:36: PM
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